Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac loc » cac lop, cac toc, cac hoc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
ve cac » va cac, vien cac
loc va » hoc va, luc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky nang xa hoi. hieu ve cac loc va hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang xa hoi. hieu ve cac loc va hanh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang xa hoi. hieu ve cac loc va hanh vi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang xa hoi. hieu ve cac loc va hanh vi ((cua tre) or (cua triet))*.